Artistic media stretcher

ABSTRACT

This application relates to systems and methods for stretching artistic media, such as watercolor paper and/or canvas. In particular, this application discusses an artistic media stretcher and associated methods. Generally, the media stretcher includes a frame on which the medium is stretched and a hinged clamping mechanism that is adapted to both stretch the medium and to secure the medium to the frame. Some examples of suitable hinged clamping mechanisms include a double-hinged; single-hinged, tongue-and-catch; a barbell-hinged, half-barbell hinged, and a hybrid-hinged clamping mechanism. In some cases, the media stretcher is made so that paint can run off the medium without collecting at the edges. For example, the medium may be raised above the closest edges of the hinged-clamping mechanism so that paint is not retained in contact with the medium by the clamping mechanism.

CROSS-REFERENCE TO RELATED APPLICATION

This application claims the benefit of U.S. Provisional Patent Application No. 61/033,325, entitled ARTISTIC MEDIA STRETCHER, filed on Mar. 3, 2008, the entire disclosure of which is incorporated herein by reference.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to artistic media. In particular, the present invention relates to systems and methods for providing, stretching, and/or shaping artistic media.

2. Background and Related Art

Before an artist paints on a watercolor paper or a canvas, the paper or canvas may be stretched on a supporting structure to prevent the paper or canvas from buckling during the painting process. The stretching of the paper or canvas can thus provide a smooth surface for painting.

While conventional supporting structures are available to users, conventional supporting structures have several shortcomings. For example, some known supporting structures are complicated and, thus, difficult to use. For instance, some supporting structures require tools, such as a hammer or a screwdriver, to tighten the paper or canvas and/or to remove it from the supporting structure. Additionally, in some instances, it is difficult to obtain an even tension across the paper or canvas. In another example, some supporting structures comprise one or more pieces that are removable from the supporting structures. Accordingly, these removable pieces can easily be lost or left behind. In still another example, some supporting structures have components that obstruct paint from running off the edges of the paper or canvas. For instance, in some supporting structures, the mechanism that holds the paper or canvas to the supporting structure extends laterally past the painting surface of the canvas or paper at one or more edges. In such instances, the paint may undesirably be retained or spread on the paper or canvas.

Thus, while techniques currently exist that are used to stretch artistic media, challenges still exist, including those mentioned above. Accordingly, it would be an improvement in the art to augment or even replace current techniques with other techniques.

SUMMARY OF THE INVENTION

The present invention relates to artistic media. In particular, the present invention relates to systems and methods for providing, stretching, and/or shaping artistic media. Implementation of the described systems and methods takes place in association with an artistic media stretcher. Generally, the media stretcher includes an artistic media frame, on which a medium can be stretched, and a hinged clamping mechanism that can secure the medium to the frame.

Some non-limiting examples of suitable hinged clamping mechanisms include a double-hinged clamping mechanism; a single-hinged, tongue-and-catch clamping mechanism; a barbell-hinged clamping mechanism; a half-barbell-hinged clamping mechanism; and a hybrid-hinged clamping mechanism. In some cases, the media stretcher is also made so that paint is allowed to run off the medium without collecting at one or more of the medium's edges. Indeed, in one example, the media stretcher is configured so that the painting surface of the medium is raised above the closest edges of the hinged-clamping mechanism. Accordingly, in this example, the clamping mechanism does not catch and retain paint against the medium.

While the systems and methods of the present invention have proven to be particularly useful in the area of stretching artistic media, such as paper and canvas for water color or oil painting, those skilled in the art can appreciate that the described systems and methods can be used in a variety of different applications and in a variety of different areas of manufacture. For instance, the skilled artisan will recognize that the described artistic media stretcher can be configured to stretch other media, such as quilting fabrics, embroidery fabrics, tarps, awnings, etc.

These and other features and advantages of the present invention will be set forth or will become more fully apparent in the description that follows and in the appended claims. The features and advantages may be realized and obtained by means of the instruments and combinations particularly pointed out in the appended claims. Furthermore, the features and advantages of the invention may be learned by the practice of the invention or will be obvious from the description, as set forth hereinafter.

BRIEF DESCRIPTION OF THE DRAWINGS

In order that the manner in which the above recited and other features and advantages of the present invention are obtained, a more particular description of the invention will be rendered by reference to specific embodiments thereof, which are illustrated in the appended drawings. Understanding that the drawings depict only typical embodiments of the present invention and are not, therefore, to be considered as limiting the scope of the invention, the present invention will be described and explained with additional specificity and detail through the use of the accompanying drawings in which:

FIG. 1 illustrates a top, perspective view of a representative embodiment of an artistic media stretcher, wherein the stretcher is in an open position;

FIG. 2 illustrates a bottom, perspective view of a representative embodiment of the artistic media stretcher, wherein the stretcher is in the open position;

FIG. 3 illustrates a side, perspective view of a representative embodiment of the artistic media stretcher, wherein the stretcher is in the open position;

FIG. 4 illustrates a cross-sectional, perspective view of a representative embodiment of a hinged clamping mechanism;

FIG. 5 illustrates a cross-sectional, perspective view of a representative embodiment of the hinged clamping mechanism, wherein the hinged clamping mechanism comprises a barbell-hinged clamping mechanism in the open position;

FIG. 6 illustrates a cross-sectional, perspective view of a representative embodiment of the hinged clamping mechanism, wherein the hinged clamping mechanism comprises a barbell-hinged clamping mechanism in the closed position;

FIGS. 7 and 8 illustrate cross-sectional, side-plan views of some representative embodiments of the hinged clamping mechanism, wherein the hinged clamping mechanism comprises a half-barbell-hinged clamping mechanism;

FIGS. 9-10 illustrate cross-sectional, side-plan views of some representative embodiments of the hinged clamping mechanism, wherein the hinged clamping mechanism comprises a hybrid-hinged clamping mechanism;

FIG. 11 illustrates a cross-sectional, side-plan view of a representative embodiment the hinged clamping mechanism;

FIGS. 12A-12F illustrate cross-sectional, side-plan views of a representative embodiment of the hinged clamping mechanism;

FIGS. 13A-13E illustrate side-plan views of some representative embodiments of suitable interface component profiles;

FIG. 14 illustrates a cross-sectional, side-plan view of a representative embodiment of the hinged clamping mechanism comprising interchangeable interface components;

FIG. 15A illustrates a cross-sectional, side-plan view of a representative embodiment of a medium catch mechanism;

FIG. 15B illustrates a perspective view of a representative embodiment of the media stretcher, wherein the media stretcher is configured to couple to a second media stretcher;

FIGS. 15C-15D illustrate top-plan views of some representative embodiments in which the media stretcher comprises a plurality of modular sections;

FIG. 15E illustrates a side-plan view of a representative embodiment in which the media stretcher comprises a plurality of modular sections;

FIGS. 16A-16B illustrate cross-sectional, side-plan views of some representative embodiments of the hinged clamping mechanism; and

FIGS. 17A-17C illustrate top plan views of some representative embodiments in which the media stretcher comprises a plurality of modular sections.

DETAILED DESCRIPTION OF THE INVENTION

The present invention relates to artistic media. In particular, the present invention relates to systems and methods for stretching artistic media. In the disclosure and in the claims, the terms “media” or “medium” may refer to any suitable material or materials that can be stretched by the described artistic media stretcher and which is capable of being painted. Some examples of suitable media, include paper (e.g., watercolor paper, craft paper, construction paper, etc.), fabric (e.g., canvas, cotton fabrics, linen fabrics, poly-cotton fabrics, burlap, polyester fabrics, silk, etc.), and other suitable materials that are both stretchable and paintable. Additionally, as used herein, the term “stretch” or “stretched” may refer to application of tension to the artistic media in one or more directions.

This application discusses an artistic media stretcher that selectively stretches and releases artistic media. While the artistic media stretcher may comprise any suitable component, FIG. 1 shows a representative embodiment in which the artistic media stretcher 10 comprises an artistic media frame 15 and one or more hinged clamping mechanisms (e.g., a double-hinged clamping mechanism 20). Generally, an artistic medium (e.g., watercolor paper) is placed on the frame and then stretched by the hinged clamping mechanism to prepare the medium for painting. To provide a better understanding of the media stretcher, each of the aforementioned components is described below in more detail.

As previously mentioned, in some embodiments, the media stretcher comprises an artistic media frame. The frame may serve many purposes, including acting as a support for the clamping mechanism and/or acting as a support over which the medium can be stretched. Accordingly, the frame may have any characteristic that is suitable for fulfilling one or more of the stated purposes. For example, the frame can be any size that is suitable for use with the artistic media. In another example, the frame can be any suitable shape. Some examples of suitable frame shapes include a shape that is substantially square, rectangular, triangular, hexagonal, pentagonal, octagonal, polygonal, irregular, and so forth. For instance, FIG. 1 shows a presently preferred embodiment in which the frame 15 is square or rectangular.

The frame may comprise any component that allows the medium to be stretched across and/or to be supported by the frame. In one example, the frame comprises one or more side members, a media backing surface, and/or a media interface.

FIG. 2 shows a bottom view of a representative embodiment in which the frame 15 comprises a plurality of side members 25. The side members may serve any suitable purpose, including providing a framework on which the medium may be stretched and/or providing a framework for supporting the clamping mechanism. Where the frame comprises side members, the frame may comprise any suitable number of side members that allows the frame to fulfill its intended purposes. In one example, the frame comprises a single continuous side member that extends around the perimeter of the frame. In another example, the frame comprises 2 side members that are disposed on opposing sides of the frame. In still another example, the frame comprises 4 side members, wherein 1 side member is disposed at each side of a 4-sided frame. By way of illustration, FIG. 2 shows an embodiment in which the frame 15 comprises 4 side members 25.

The side members may have any characteristic that allows the medium to be stretched across them. For example, the side members may be any suitable size (e.g., length, width, height, thickness, etc.) or shape. In another example, the side members can be retained in their respective positions in any suitable manner. For instance, the side members can support themselves, be supported by the media backing surface, and/or be supported in any other suitable manner. Indeed, FIG. 2 shows an embodiment in which the ends 30 of the side members 25 connect in a maimer that allows the side members 25 to support each other.

FIG. 2 shows, that in some embodiments, the frame 15 optionally comprises the media backing surface 35. The backing surface may serve several purposes, such as supporting the medium from behind during painting and/or supporting the clamping mechanism. The backing surface may have any characteristic that allows it to fulfill its intended purposes. For example, the backing surface may be any size, shape, texture, or have any other feature that is suitable for use with the media stretcher.

As mentioned above, the media stretcher comprises a hinged clamping mechanism. The hinged clamping mechanism may serve any suitable purpose. In one example, the hinged clamping mechanism is configured to selectively stretch and secure the medium to the frame as well as selectively release the medium from the frame. In this manner, the medium can be kept flat and be supported on the frame until the clamping mechanism is released.

The media stretcher may comprise any suitable number of hinged clamping mechanisms. For instance, the media stretcher can comprise 1, 2, 3, 4, or more clamping mechanisms. FIG. 2, however, shows that, in some presently preferred embodiments, the media stretcher 10 includes 4 hinged clamping mechanisms (e.g., double-hinged clamping mechanism 20)—one for each side of the rectangular frame 15.

The hinged clamping mechanism may comprise any clamping mechanism that includes a hinge or a hinge-like structure that is configured to stretch the medium across the frame. For example, the hinged clamping mechanism may comprise one or more double-hinged clamping mechanisms, single-hinged clamping mechanisms, barbell-hinged clamping mechanisms, half-barbell-hinged clamping mechanisms, or other suitable hinged clamping mechanisms, such as a hybrid-hinged clamping mechanism. To better explain the aforementioned clamping mechanisms, each is described below in more detail.

Where the media stretcher comprises the double-hinged clamping mechanism, the double-hinged clamping mechanism may include any suitable component or characteristic that allows it to releasably stretch the medium on the frame. By way of example, FIG. 2 shows an embodiment in which the double-hinged clamping mechanism 20 comprises a first hinge 40, a second hinge 45, and a clamp member 50.

The components of the double-hinged clamping mechanism may have any characteristic that allows the clamping mechanism to releasably stretch the medium across the frame. In one example, the first hinge and the second hinge can be any suitable type of hinge, be any suitable length, and/or each hinge can comprise more than one hinge disposed to the side of another hinge.

In another example, the clamp member may have any characteristic that allows it to hold the medium against the frame. For instance, the clamp member may be any size (i.e., length, height, width, diameter, etc.). By way of illustration, FIG. 2 shows an embodiment in which the clamp member 50 is beveled from its longest edge 55 to a shorter, opposing hinge-edge 57. Accordingly, in FIG. 2, the clamp member 50 is long enough to secure the medium along most, if not all, of an edge of the frame 15.

In still another example, the clamp member can have any suitable shape. By way of illustration, FIG. 3 shows a cross-sectional view of a representative embodiment in which the clamp member 50 is somewhat J-shaped.

In yet another example, the clamp member comprises a media interface that is configured to apply pressure to the artistic medium when the clamping mechanism is moved to a closed position. Where the clamping mechanism comprises a double-hinged clamping mechanism, the clamping mechanism can comprise any media interface that is adapted to mate with a corresponding media interface on the frame when the clamping mechanism is moved to the closed position. Some suitable examples of media interfaces comprise one or more protuberances, lips, grooves, undercuts, or other frictional engagements. For instance, FIG. 3 shows an embodiment in which the media interface of the clamp member 50 comprises a lip 60 and the media interface of the frame 15 comprises a groove 65 that is configured to mate with the lip 60. In such an embodiment, an edge of the artistic medium can be placed between the lip and the groove when the clamping mechanism is in the open position. Following its placement, the artistic medium can be pinched and secured between the lip and groove by moving the clamping mechanism into the closed position.

The various components of the double-hinged clamping mechanism (e.g., the first hinge, the second hinge, and the clamp member) can be configured in any way that allows the clamping mechanism to stretch the medium across the frame. For example, FIG. 3 shows one suitable configuration of the double-hinged clamping mechanism. Specifically, FIG. 3 shows an embodiment in which the first hinge 40 is connected to a side member 25 of the frame 15. In turn, FIG. 3 shows that the first hinge 40 is connected to the second hinge 45, which, in turn, is connected to the clamp member 50. In this manner, the clamp member 50 is allowed to rotate about both the first 40 and the second hinge 45 in the same direction or in a different direction, at the same time.

According to some embodiments, the hinged clamping mechanism comprises a single-hinged clamping mechanism. Indeed, the hinged clamping mechanism may comprise any known or novel single-hinged clamping mechanism that can secure and stretch the medium across the frame. For example, FIG. 4 illustrates a representative embodiment in which the media stretcher 10 comprises a single-hinged, tongue-and-catch clamping mechanism 70. While the tongue-and catch clamping mechanism may comprise any suitable component, FIG. 4 shows an embodiment in which the single-hinged clamping mechanism 70 comprises one or more clamp bodies 75 and tongues 80. As shown in FIG. 4, each tongue 80 is pivotally connected to the body 75 so as to swing away from the body 75 (as illustrated by arrow 85) and towards the body (as indicated by arrow 90). Additionally, FIG. 4 shows the tongue 80 comprises a first end 95 and that the body 75 comprises a catch 100. In this embodiment, when the clamping mechanism is in the open position, an edge of the medium (not shown) can be placed in between the first end 95 of the tongue 80 and the catch 100. The first end can then be forced passed the catch, to the closed position, so that the medium is pinched between the first end and the catch.

In some embodiments, the hinged clamping mechanism comprises a barbell-hinged clamping mechanism. Indeed, any suitable barbell-hinged clamping mechanism may be used in conjunction with the media stretcher. For example, FIGS. 5 and 6 illustrate cross-sectional views of a representative embodiment of a barbell-hinged clamping mechanism 105.

Although the barbell-hinged clamping mechanism may comprise any desired component, FIG. 5 shows an embodiment in which the barbell-hinged clamping mechanism 105 comprises at least two clamp members (e.g., a first clamp member 10 and a second clamp member 115) as well as a barbell member 120. Each of these components can have any suitable characteristic that allows the barbell-hinged clamping mechanism to releasably secure the medium to the media stretcher. Additionally, while in some embodiments, the barbell member extends the length of the clamp member, in other embodiments, the barbell member is shorter than the length of the clamp member. In such embodiments, a single clamp member can comprise a plurality of barbell members.

In one example, FIG. 5 shows that the barbell member 120 comprises a first rounded end 125, a second rounded end 135, and a shaft 128 that separates the two ends 125 and 135. Moreover, FIG. 5 shows that the first end 125 of the barbell member 120 is rotatably received by a recess 130 in the first clamp member 110, while the second end 135 is rotatably received by another recess 140 in the second clamp member 115. As shown in FIG. 5, the first end 125 of the barbell member 120 has a limited range of rotational motion within the recess 130 of the first clamp member 110 in, or opposite to, the direction of arrow 145. Similarly, FIG. 5 shows that the second end 135 of the barbell member 120 has a limited range of rotation within the recess 140 of the second clamp member 115. Accordingly, the barbell-hinged clamping mechanism 105 may be moved from the open position shown in FIG. 5 into the closed position shown in FIG. 6, and vice versa.

In another example of a suitable characteristic associated with the barbell-hinged clamping mechanism 105, FIG. 5 shows the first clamp member 110 comprises an interface 150 for the medium 155 (e.g., fabric or paper). In this example, FIG. 5 further shows that the second clamp member 115 comprises an interface 160 that corresponds to the interface 150 of the first clamp member 110. Accordingly, FIG. 5 shows that when the clamping mechanism 105 is in the open position, the medium 155 may be placed between the two interfaces 150 and 160. Then, as shown in FIG. 6, when the barbell-hinged clamping mechanism 105 is closed, the medium 155 is pinched between the interfaces 150 and 160.

In some embodiments, the hinged clamping mechanism comprises a half-barbell hinged clamping mechanism. Indeed, the media stretcher may comprise any suitable half-barbell hinged clamping mechanism. By way of illustration, FIGS. 7 and 8 illustrate cross-sectional views of some representative embodiments of suitable half-barbell-hinged clamping mechanisms 165.

Although the half-barbell hinged clamping mechanism may comprise any desired component, FIGS. 7 and 8 show some embodiments in which the half-barbell clamping mechanism 165 comprises a first clamp member 170 and a second clamp member 175. Additionally, FIGS. 7 and 8 show that the first 170 and the second 175 clamp members are rotatably connected to each other via a half-barbell member 180 that is pivotally received within a recess 185. Specifically, FIG. 7 shows an embodiment in which the first clamp member 170 comprises the recess 185 that receives the half-barbell member 180, which extends from the second clamp member 175. In contrast, FIG. 8 shows an embodiment in which the first clamp member 170 comprises the half-barbell member 180 that is received within the recess 185 of the second clamp member 175. Accordingly, FIGS. 7 and 8 show that the first clamp member 170 has a limited range of rotation in the direction of, and opposite to, arrow 190. In other words, the half-barbell clamping mechanism 165 is capable of being moved from the closed position (shown in FIGS. 7 and 8) to the open position (not shown), and vice versa.

Each of the components of the half-barbell clamping mechanism may have any characteristic that allows the clamping mechanism to releasably secure the medium to the media stretcher. In one example, FIGS. 7 and 8 show that the half-barbell member 180 comprises a rounded portion 192 having a shaft 194 that extends to either the second clamp member 175, as shown in FIG. 7, or the first clamp member 170, as shown in FIG. 8. In another example, FIGS. 7 and 8 show that the first clamp member 170 comprises an interface 195 for the medium 155. Additionally, FIGS. 7 and 8 also show the second clamp member 175 comprises a corresponding media interface 200. Thus, FIGS. 7 and 8 show that the medium 155 may be pinched between the two interfaces 195 and 200 when the clamping mechanism 165 is in the closed position.

As previously mentioned, in some embodiments, the clamping mechanism comprises a hybrid-hinged clamping mechanism. In other words, in some embodiments, the clamping mechanism comprises at least one barbell member and at least one half-barbell member. In such embodiments, the hybrid-hinged clamping mechanism may be configured in any suitable manner. By way of illustration, FIGS. 9 and 10 show some representative embodiments of a hybrid clamping mechanism 205. In particular, FIGS. 9 and 10 show that the first clamp member 270 is pivotally connected to the second clamp member 275 by the barbell member 120.

Additionally, FIGS. 9 and 10 show that the first clamp member 270 is pivotally connected to a media interface component 210 by the half-barbell 165 member. Because the interface component 210 is pivotally connected to the clamping mechanism, the interface component is allowed to rotate and thereby stretch the medium more than would otherwise be possible. Accordingly, such a clamping mechanism may be preferable for media, such as canvas, that tend to need to be stretched to a greater extent before painting.

Where an interface component is pivotally connected to a clamp member (as shown in FIGS. 9 and 10, discussed above) the interface component may have any suitable characteristic. By way of example, FIGS. 9 and 10 show some embodiments in which the rotation of the interface component 210 is determined by the movement of the second clamp member. Specifically, FIGS. 9 and 10 show movement of the interface component 210 is restricted and controlled by at least one projection 212 that fits into at least one slot 214. While FIGS. 9 and 10 show embodiments in which the projection 212 extends from the first clamp member into a slot 214 in the interface component 210, the skilled artisan will recognize that the placement of the slot 214 and the projection 212 can be reversed.

In addition to the previously mentioned characteristics, the hinged clamping mechanism may have any other desired characteristic. For example, the hinged clamping mechanism (e.g., the double-hinged, barbell-hinged, half-barbell hinged, or hybrid-hinged clamping mechanism) may be any length that is suitable for use with the media stretcher. For instance, one or more clamping mechanisms may be substantially equal in length to the length of a corresponding edge of the media stretcher frame. Accordingly, the clamping mechanism may apply a substantially even tension to the medium that is stretched across the frame.

In another example, a portion of one or more hinged clamping mechanisms may serve as a portion of the frame. For example, referring back to FIG. 4, FIG. 4 illustrates an embodiment in which multiple clamp bodies 75 are attached to each other, side-by-side, to form the frame 15. While FIG. 4 shows an embodiment in which each side of the frame 15 comprises a plurality of clamp bodies, in other embodiments, each side of the frame is made of a single elongated clamp body. Additionally, in this example in which each side of the frame comprises one or more clamp bodies, the clamp bodies may have any suitable characteristic. For instance, FIG. 4 shows an embodiment in which each clamp body comprises an indentation 215 that is adapted to receive the backing surface (not shown).

In yet another example of an optional characteristic of the hinged clamping mechanism, the clamping mechanism comprises a locking mechanism. In fact, the clamping mechanism may comprise any known or novel locking mechanism that serves to selectively retain and release the clamping mechanism.

In one example of a suitable locking mechanism, the locking mechanism comprises a projection and a corresponding catch. By way of illustration, FIG. 11 depicts an embodiment in which the clamping mechanism 260 has at least one catch 265 and a corresponding protuberance 275. While the catch and protuberance can be disposed in any suitable locations on the clamping mechanism, FIG. 11 shows an embodiment in which the catches 265 are disposed in the first clamp member 270 and corresponding protuberances 275 extend from the second clamp member 280. To lock the clamping mechanism 260 into the closed position (shown in FIG. 11), the protuberances 275 are forced, and snapped, into the catches 265. In contrast, to unlock the clamping mechanism 260, a force is applied to second clamp member 280 in the direction of arrow 285 until the protuberances 275 are released from the catches 265.

In another example of a suitable characteristic, the media stretcher optionally comprises means for biasing the hinged clamping mechanism in any desired position. While the biasing means may comprise any suitable component, FIG. 11 illustrates an embodiment in which the biasing means comprises a frictional engagement (e.g., a half-moon-shaped frictional engagement 300), which rubs against a side of the barbell member 120 and prevents the barbell member from sliding unless sufficient force is applied to the second clamp member 280 to overcome the friction between the barbell member 120 and the frictional engagement.

In still another example of a suitable characteristic, the media stretcher can be configured to provide additional tension to the medium. As previously mentioned, this additional tension may be beneficial for stretchable media that need to be drawn tight before being painted. While the media stretcher can be configured to provide additional tension to the medium in any suitable manner (e.g., via the hybrid-hinged clamping mechanism), some additional examples of suitable configurations are illustrated in FIGS. 11 and 12A through 12F.

Specifically, FIG. 11 illustrates a representative embodiment in which the clamping mechanism comprises a cam-action media interface 290. While the cam-action media interface can function in any suitable manner, FIG. 11 shows an embodiment in which the cam-action media interface 290 rotates within the first clamp member 270 as the clamping mechanism is moved between the open and closed positions. In particular, FIG. 11 indicates that when the clamping mechanism 260 is moved to the open position, the cam-action interface 290 rotates in the direction of arrow 295. By rotating in this manner, the cam-action interface 290 reduces the tension on the medium 155.

On the contrary, when the clamping mechanism 260 in FIG. 11 is moved to the closed position, the cam-action interface 290 rotates in the direction opposite to that of the arrow 295, causing the medium interface to stretch a medium placed between it and a second medium interface.

As another example of means for stretching the medium, FIGS. 12A through 12F illustrate cross-sectional views of some embodiments in which the clamping mechanism 310 is pivotally attached to the frame 15. In this example, the clamping mechanism can function in any suitable manner. For instance, FIG. 12A shows that with the clamping mechanism 310 in the open position, a medium 155 is placed between a first 315 and second 320 interface components. Next, FIG. 12B shows that the second clamp member 325 is pivoted about barbell member 120 until the clamping mechanism 310 is moved to the closed position, as shown in FIG. 12C. FIG. 12D shows that as the clamping mechanism 310 is pivoted about the half-barbell member 180, the clamping mechanism pulls the medium 155 in the direction of arrow 330. Then, after the clamping mechanism 310 is pivoted against the frame 15, FIGS. 12E and 12F show that a lip 335 on a barbell hinged locking mechanism 340 is used to capture a lever 345 on the clamping mechanism 310. In this manner, the clamping mechanism 310 retains the tension on the medium 155 until the locking mechanism 340 is released and the clamping mechanism is allowed to pivot away from the frame 15.

In addition to the previously mentioned embodiments, the media stretcher may be modified in any suitable manner. In one example, the round portions of the barbell and/or half-barbell components are substituted with another pivoting means, such as a hinge or pivot joint, which is suitable for use with the media stretcher.

In another example, the media stretcher is adapted to allow paint to run off the medium and not to collect around the borders of the medium. Indeed, in some embodiments, the medium is raised laterally past (or above) the closest edges of the hinged clamping mechanism so that paint is not retained in contact with the medium by the clamping mechanism. In such embodiments, the medium may be raised any distance above the closest edges of the clamping mechanism. For instance, the medium may be raised as much as several centimeters above or as little as a portion of the thickness of the medium above the closest edges of the clamping mechanism. By way of illustration, FIG. 12D shows an embodiment in which the clamping mechanism 310 is disposed below the perimeter 350 of the frame 15 so that paint can is not retained by the clamping mechanism 310 at the perimeter 350. Nevertheless, FIG. 10 shows am embodiment in which the medium 155 is raised above the closest exposed edge 355 of the clamping mechanism 205 by at least the thickness of the medium 155.

In another example of a suitable modification, the media stretcher may be adapted to stretch the medium in such a manner that the medium does not rest against the media backing surface. For instance, FIG. 12D shows an embodiment in which the medium 155 is stretched so as to be suspended a distance X above the backing surface 35. Such an embodiment may be beneficial in several instances, including, but not limited to, when the media stretcher is used to stretch media intended for use with oil paints.

In yet another example, the interface surfaces may be modified in any way to increase their ability to secure the medium while the medium is stretched on the media stretcher. For instance, a frictional interface surface, including a surface made of a resilient material (e.g., a rubber, a plastic, a polymer, etc), a roughened or knurled surface, a slot, a protuberance, and/or any other suitable element can be added to the clamping mechanism to increase the friction between one of the clamping mechanisms and the medium. By way of illustration, FIG. 12B (and FIG. 11) shows an embodiment in which a resilient material 360 is used for at least one interface surface. Similarly, referring back to FIG. 7, that Figure shows an embodiment in which the second clamp member 175 comprise a slot 365 into which the medium 155 can be inserted before the clamping mechanism is moved to the closed position.

In still another example of a variation, the clamping mechanism may be modified to facilitate its opening or closing. For instance, in some embodiments, the clamping mechanism comprises a lever or a pull tab. By way of illustration, FIG. 7 shows an embodiment in which the clamping mechanism comprises a lever 370 that is adapted to facilitate the opening and/or closing of the clamping mechanism.

In still another example, the media stretcher is optionally configured to crease the borders of the medium so as to emboss or raise the borders above the rest of the medium and/or to provide the borders with a variety of shapes. The creased borders of the medium may serve any suitable purpose. In some cases, the creased borders act as a decoration around the medium. In other cases, the creased borders are attached to an object so that the medium extends from or into the object as a relief. In still other cases, a filler, such as a spray foam, is added to the creased borders to strengthen the borders and give added support to the media. In such cases, the creased medium may be able to support itself without a frame.

The media stretcher can crease the borders of the medium in any suitable manner. In one example, the interfaces on the clamping mechanisms have cross-sectional profiles that are adapted to crease the medium in a desired fashion. In this example, the media interfaces can have any suitable cross-sectional profile. For instance, FIGS. 13A through 13E illustrate some examples of suitable cross-sectional profiles for a first 375 and a second 380 interface component. Specifically, FIGS. 13A through 13D respectively show that some typical profiles include, but are not limited to, a rolling hill, a triple square, a cascade, a half-moon, and a rib profile.

In order to allow the media stretcher to crease media borders with more than one design, in some embodiments, the interface components are interchangeable with other interfaces of differing design. By way of example, FIG. 14 shows a representative embodiment in which the clamping mechanism 385 comprises a first 390 and a second 395 removable interface component. In this example, the interface components 390 and 395 may be interchanged with other interface components having any suitable design, including those designs shown with the interface components 375 and 380 of FIGS. 13A through 13D.

In some embodiments, the media stretcher is configured to catch the corners of the medium without requiring the corners to be hingedly clamped into place. While the medium's corners can be captured in any suitable manner, FIG. 15A shows a cross-sectional view of a representative embodiment in which media stretcher comprises a medium catch mechanism 500. The catch mechanism may comprise any suitable component. For instance, FIG. 15A shows an embodiment in which the catch mechanism 500 comprises a first clamp member (e.g., clamp member 270 in FIG. 11) and a J-shaped catch member 505. More particularly, FIG. 15A shows that while the first clamp member comprises catches 265, the J-shaped catch member 505 comprises corresponding protuberances 275 that snap into the catches to attach the catch member 505 to the first clamp member 270. Accordingly, when the medium (not shown in FIG. 15A) is placed between a first interface surface 510 on the first clamp member 270 and a second interface surface 515 on the catch member 505, the medium is pinched or otherwise held in place.

In some embodiments, the media stretcher is expandable. Accordingly, the size of the media stretcher can be tailored for media of different sizes and shapes. The media stretcher can be expanded by connecting a plurality of media stretchers together, by interconnecting a plurality of modular pieces of a media stretcher, by inserting a leaf into the frame, or in any other suitable manner.

In one example of a method for expanding the media stretcher, FIG. 15B illustrates a representative embodiment in which a first media stretcher 10 is configured to be attached to a second media stretcher 10′ to form a single, large media stretcher. While the first 10 and the second 10′ media stretchers can be attached to each other in any suitable manner, FIG. 15B shows a presently preferred embodiment in which the first media stretcher 10 comprises a pair of posts 520 that fit within corresponding channels 525 in the second media stretcher 10′. Furthermore, FIG. 15B shows that the second media stretcher 10′ can comprise a pair of posts to allow it to be connected to a third media stretcher (not shown). In this manner, the media stretcher can be quickly and easily expanded to any suitable size.

In another example, FIGS. 15D through 15E and FIGS. 17A through 17C illustrate some embodiments in which the media stretcher 10 is formed of a plurality of modular sections 600. Where the media stretcher is formed from a plurality of modular sections, the media stretcher can comprise any suitable number of modular sections. For instance, the media stretcher can comprise as few as 2 modular sections or as many as 100 or more modular sections. By way of illustration, FIGS. 15C and 15D illustrate embodiments in which the media stretcher 10 comprises 8 and 12 modular sections 600, respectively.

Similarly, FIGS. 17A, 17B, and 17C comprise 4, 10, and 16 sections 600, respectively. More specifically, FIG. 17A shows a representative embodiment in which the media stretcher 10 comprises 4 corner sections 605. FIG. 17B illustrates a representative embodiment in which the media stretcher 10 comprises 4 corner sections 605 and 6 spacer sections 610. Moreover, FIG. 17C illustrates a representative embodiment in which the media stretcher 10 comprises 4 corner sections 605 and 12 spacer sections 610. As shown in the non-limiting illustrations shown in FIGS. 15D, 15E, and 17A through 17B, the number and placement of the modular sections can be varied in any suitable manner. For instance, where the media stretcher comprises 4 corner sections 605, the corner sections can be separated from each other by any suitable number of spacer sections 610 that allows parallel edges of the media stretcher to be the same length. Indeed, in some embodiments, any two adjacent corner sections 605 are separated by 0, 1, 2, 3, 4, 5, or more spacer sections 600. Accordingly, the size and shape of the media stretcher can be easily tailored to a specific medium.

Where the media stretcher comprises modular components, the modular components can be connected to each other in any suitable manner. For instance, the modular components can be mechanically fastened together (e.g., snapped together, inserted into each other, clamped together, strapped together, welded together, etc.) or chemically fastened together (e.g., glued together). In some preferred embodiments, however, the modular pieces are adapted to be mechanically attached and detached from each other in a manner that allows the user to quickly and easily connect and disconnect the modular pieces to tailor the media stretcher for a particular project. By way of example, FIG. 15D illustrates an embodiment in which each modular section 600 (i.e., corner sections 605 and spacer sections 610) comprises a projection 615 that is configured to fit within a recess 620 (depicted by dotted line) of an adjacent modular section 600 in the direction indicated by the arrows.

Where the media stretcher comprises a plurality of modular sections, each modular section can have any suitable component or configuration. For example, one or more of the modular sections can comprise any suitable type of clamping mechanism. By way of illustration, FIG. 15E illustrates an embodiment in which the media stretcher comprises a plurality of modular sections 600 that each have a clamping mechanism 625 that includes the barbell member 120. As another example, FIG. 15E further illustrates that one or more of the modular sections 600 of the media stretcher 10 can be separated from each other by the media backing surface 35 of a desired size.

The various components of the media stretcher may be made of any suitable material. Some non-limiting examples of suitable materials may include one or more types of plastic, polymer, metal, metal alloy, wood, ceramic, and/or any other suitable material. In one example, various components of the clamping mechanism (e.g., the clamp member 50 of the double-hinged clamping mechanism 10 shown in FIG. 1 and the clamp members 115 and 170 in FIGS. 6 and 7, respectively) are formed of a resilient material. In this manner, the components of the clamping mechanism may act as a spring when the clamping mechanism is moved from the open to the closed position or vice versa. This spring-like action may serve to bias the various hinged clamping mechanisms into the open and/or closed positions. Furthermore, this spring-like action may serve to keep the medium at a desired tension on the media stretcher for an extended period.

As an illustration of a representative embodiment in which the clamping mechanism is made of resilient material that provides the clamping mechanism with a spring-like action, FIGS. 16A and 16B shows embodiments in which portions of the clamping mechanisms 400 and 440, respectively, resiliently flex during use. Specifically, FIG. 16A shows an embodiment of the clamping mechanism 400 in which the first clamp member 405 is configured to increase the spring-like effect of the resilient material used to make the clamp member. In particular, FIG. 16A shows the first clamp member 405 is configured to have a catapult-like portion 410 connects to the barbell component 120. In this example, movement of the second clamp member 415 in the direction of arrow 420 causes the recess-containing portion 425 of the first clamp member 405 to move in the direction of arrow 430 until the pressure applied to it by the barbell member 120 is removed. Once the pressure is removed, the recess-containing portion 425 of the first clamp member 405 returns to its original position.

Similarly, in FIG. 16B, the second clamp member 450 of the clamping mechanism 440 comprises an elongated portion 455 that is configured to resiliently flex and bow as the second clamp member 450 moves from the closed position (shown in FIG. 16B) to an open position (not shown).

The various components of the media stretcher may be made in any suitable manner. For example, the various components may be formed through extrusion, molding, injection, carving, cutting, stamping, and the like. Indeed, in some preferred embodiments, one or more portions of the media stretcher are formed by extrusion.

Although the media stretcher may be used in any suitable manner, a non-limiting example of how it may be used is provided herein. In this example, a medium, such as piece of paper or canvas, is wetted by misting, soaking, or another conventional method. After wetting, the medium is spread across the media stretcher. Generally, the medium is larger than the frame so that 2 or more of the medium's borders extend past the 2 or more edges of the frame.

The borders, which overhang the frame, may then be secured to the frame. For instance, the user slides, bends, pushes, or otherwise moves the edges of the medium into place, between the interface components of the clamp members.

No matter the method for placing the edges of the medium between the interface components, the media stretcher may secure and stretch the medium when one or more of the hinged clamping mechanisms are moved into the closed position. Once the medium is secured to the media stretcher, the medium may be allowed to dry (e.g., by air drying, using a hair dryer, etc.). After the medium is dried, it can be removed or it may be maintained in place throughout the painting process. Either way, once the medium is removed, the process can be repeated, as desired.

The media stretcher may offer several advantages over some conventional systems and methods for stretching artistic media. For example, because the clamping mechanism may be opened and closed without the use of tools, the media stretcher may be quickly and easily used. In another example, the media stretcher can prepare the medium for painting in a short period of time. For instance, the medium can be stretched and dried on the media stretcher in about 5 minutes. In another example of an advantage of the media stretcher, a desired area of the borders of the media (e.g., ¼ to ¾ of an inch) may be shielded from paint by the clamping mechanism. In yet another example, the medium (e.g., paper) may be pre-formed on the media stretcher for use at a later time. In still another example, all parts of the media stretcher may be connected to the media stretcher so as to not be lost or left behind. In a final example, the media stretcher can be light-weight, long-lasting, and relatively inexpensive.

The present invention may be embodied in other specific forms without departing from its spirit or essential characteristics. The described embodiments are to be considered in all respects only as illustrative and not restrictive. The scope of the invention is, therefore, indicated by the appended claims rather than by the foregoing description. All changes that come within the meaning and range of equivalency of the claims are to be embraced within their scope. 

1. An artistic media stretcher comprising: an artistic media frame; and a hinged clamping mechanism adapted to stretch an artistic medium, wherein the frame and the clamping mechanism are adapted to allow paint to run off of the medium without being retained against the medium by the clamping mechanism.
 2. The media stretcher of claim 1, wherein the hinged clamping mechanism is selected from a double-hinged clamping mechanism; a single-hinged, tongue-and-catch clamping mechanism; a barbell-hinged clamping mechanism; a half-barbell-hinged clamping mechanism; and a hybrid-hinged clamping mechanism.
 3. The media stretcher of claim 1, wherein the clamping mechanism is selected from a barbell-hinged clamping mechanism, a half-barbell hinged clamping mechanism, and a hybrid-hinged clamping mechanism.
 4. The media stretcher of claim 1, wherein the clamping mechanism comprises a first interchangeable media interface and a second interchangeable media interface that are configured to press against each other when the clamping mechanism is in a closed position.
 5. The media stretcher of claim 3, wherein the clamping mechanism further comprises a cam-action media interface.
 6. The media stretcher of claim 3, wherein the clamping mechanism comprises a first clamp member and a second clamp member that are connected to each other with a connector selected from a half-barbell member and a full-barbell member.
 7. The media stretcher of claim 3, wherein the clamping mechanism comprises a media interface component that is connected to a clamp member by a half-barbell member.
 8. The media stretcher of claim 3, wherein the clamping mechanism comprises a media interface component, and wherein a movement of the interface component is restricted by a projection that fits into a slot.
 9. An artistic media stretcher comprising: an artistic media frame; and a clamping mechanism selected from a double-hinged clamping mechanism, a barbell-hinged clamping mechanism, a half-barbell-hinged clamping mechanism, and a hybrid-hinged clamping mechanism.
 10. The media stretcher of claim 9, wherein the clamping mechanism comprises the double-hinged clamping mechanism, the double-hinged clamping mechanism comprising: a clamp member that is attached to a first hinge that, in turn, is attached to a second hinge, which, in turn, is attached to the artistic media frame.
 11. The media stretcher of claim 9, wherein the clamping mechanism is selected from a barbell-hinged clamping mechanism, a half-barbell-hinged clamping mechanism, and a hybrid-hinged clamping mechanism.
 12. The media stretcher of claim 9, wherein the clamping mechanism comprises a first clamp member and a second clamp member that are moveably connected to each other by a full-barbell member, and wherein the clamping mechanism further comprises a media interface component that is connected to the clamping mechanism by a half-barbell member.
 13. The media stretcher of claim 9, wherein the clamping mechanism further comprises a cam-action media interface.
 14. The media stretcher of claim 9, wherein the media stretcher is expandable, allowing a size of the media stretcher to be tailored to stretch media of differing sizes.
 15. A method for stretching an artistic medium, the method comprising; providing an artistic media stretcher comprising: an artistic media frame; and a clamping mechanism selected from a double-hinged clamping mechanism, a barbell-hinged clamping mechanism, a half-barbell-hinged clamping mechanism, and a hybrid-hinged clamping mechanism, wherein the clamping mechanism comprises a first media interface and a second media interface; placing an artistic medium on the media frame so that an edge of the artistic medium is disposed between the first and the second media interface; and stretching the artistic medium by moving the clamping mechanism to a closed position.
 16. The method of claim 15, wherein the clamping mechanism comprises the double-hinged clamping mechanism, and wherein the double-hinged clamping mechanism comprises: a clamp member that is attached to a first hinge that, in turn, is attached to a second hinge, which, in turn, is attached to the artistic media frame.
 17. The method of claim 15, wherein the clamping mechanism comprises a media interface component that is connected to a clamp member by a half-barbell member.
 18. The method of claim 15, wherein the clamping mechanism further comprises a cam-action media interface.
 19. The method of claim 15, wherein the clamping mechanism comprises the barbell-hinged clamping mechanism.
 20. The method of claim 15, wherein the clamping mechanism comprises a first interchangeable media interface component and a second interchangeable media interface component. 